Improvement in latches



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- duidt" 'me paiwtftiiiw 'l M. Pnoelon'maven, or EAST NonTHWoon,NEWHAMPSHIRE.

Lenen Parent -N0.'1o3,314, dated May .24, 1870.

IMPROVEMENT IN LATcHr-Js.-

v Theischedule 4referred to in these Lettere Patent and making part o!the same A'To allpcrsons to who-m these presents may come:

Be it known thatI, M. Pnoc'ronFAvon, of East Northwood, of 'the countyof 'Rockingham andState of New Hampshire, have invented a new and nsefulImprovement in Latch-Locks for Doors; and do hereby declare the same tobe fully descrbedin the I following specification, and represented inthe`accom panying drawing, of which.-

Figurc 1 exhibits a view of a latchboltznnl case, "with my inventioncombinedtherewit-h;

Figure 2 is a rear-side view, and Figure 3 an edge view of thelatch-bolt. The said latch-bolt is shown at A, and its, case at B, thelatter being represented as without its cover or cap.

The latch-bolt is to be so vpivoted in the case as to "he capable ofturning therein in the sector of a circle, that is, from the positionindicated by thedotted lines at A' to that denoted by the full lines atA.

On its rearside the bolt is recessed, as seen at b, to receive 'alocking-bolt, C, and it is also provided with a notch, a, fo'r thelocking-bolt to enter, when shot forward, and the latch-bolt is downagainst a stud or stop b'.

The auxiliary or llocking-bolt Gis arranged between guides c c, and istobe provided with a spring-ll, and stop-notches, e e, to operate with astop, j; when the holt is raised by a key, g, introduced into:mikey-hole, h, of the lock-case, the whole being arranged in manner aslepresen'ted in the drawings, in which 4it will be seen that thelocking-bolt is placed alongside of latchbolt, and between its pivot andrecessed head, in

which the latch-holt answers as a cover or cap to keep the locking-boltin place.

. The arrangement of the parts renders the lock sim pleand etiicient.

` 'The latch-.bolt is to extend ont ofthe case of the lock, and to playin one end thereof.

When the locking-bolt is retracted, the latch-bolt can operate as acommon latch, and, when down` it may be locked hy shooti'ngy the1ocking-bolt-into'the notch a; so,4 when the latch-bolt is up to itshighest position, it may be locked therein by shooting forward thelocking-bolt, which, in that case, will extend un` derneath the head gof' the latch-bolt.

I am aware that it is not new to combine with a Y main bolt, or with'alatch, a locking-bolt, such being shown in the United States Patent No.13,163 to Edward Field, and in that granted 'February 25,1851, toLeonard Foster. I-therefore `make no claim to such.

That I claim as my improvement is 'lhe arrangement ofthe latch and itspivot, and the locking-bolt, and their construction in manner ashereinbeforedesoribed and as represented in the accompanying drawing,the said arrangement consisting in placing the locking-bolt alongside-ofthe latch-bolt, and between the pivot and recessed head of the latter,the latch-bolt being constructed with the cylindrical pivot and therecessed head, as represented.

' M. IROCTOR FAVOR. Witnesses:

' IRA B. Hour,

CHARLES W. HoYT.

